Troubleshooting
3A8572B 31
Equipment stalled, will not
cycle
Fluid line clogged or valves closed. Inspect; clear.
Open valves downstream of the
equipment.
Motor or controller wired improperly. Wire per instructions in your related motor
manual. See Related Manuals, page 2.
Leak sensor tripped. Check diaphragm for rupture or incorrect
installation. Repair or replace.
Reduced performance Fluid line clogged. Inspect; clear.
Checks are sticky or leaking. Clean or replace.
Diaphragm (or backup diaphragm, if
applicable) ruptured.
Replace.
Air bubbles in fluid Fluid line is loose. Tighten.
Diaphragm (or backup diaphragm, if
applicable) ruptured.
Replace.
Loose manifolds. Tighten manifold fasteners or clamps.
Damaged seats or seals. Replace seats or seals.
Loose diaphragm shaft fastener. Tighten.
Fluid leaking from lower
ports on the equipment or
fluid on the floor.
Loose diaphragm shaft fastener. Tighten.
Diaphragm rupture. Leak in the equipment. Replace.
Equipment suddenly stops
operating or shuts down.
Ground fault circuit interrupter (GFCI)
tripped.
Remove controller from the GFCI circuit.
Poor supply power. Check connections. Determine and fix the
source of the problem with the supply
power.
Exceeded operational parameters. See Troubleshoot LED Indicator Event
Errors, page 26, for event codes.
Leak sensor* alert. Leak detected in the
equipment.
Check the diaphragm for rupture or
incorrect installation. Repair or replace.
The leak sensor* disconnected. Ensure the leak sensor is properly
installed. See your related leak sensor
manual.
* A leak sensor is not provided with the equipment. Accessory kits are available (purchase separately). See Related Manuals,
page 2.
Problem Cause Solution
‡
Do not modify or repair explosion proof joints.
Modifying explosion proof joints will invalidate the
Hazardous Location Certification of the equipment
and may produce an explosion hazard.
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